I have a need to query two different LDAP servers in different domains,
all the tools I have today I can query only one server a time, so I am
looking if Openldap can do this requirement ?

OpenLDAP's back-meta comes to mind. But your question is not very
specific. What tools are you using and what does querying two different
servers really mean? And you should tell us which name spaces your two
servers hold.